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Air property detection plan and method for jet-flow type fume exhaust fan

A technology of a range hood and a test method, which are applied in the directions of removing oil fume, heating method, and detecting fluid flow by measuring differential pressure, which can solve the problem that the test scheme cannot be applied.

Inactive Publication Date: 2005-07-06
梁嘉麟
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This national standard proposes the most authoritative standard data and testing methods for traditional range hoods. H

Method used

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  • Air property detection plan and method for jet-flow type fume exhaust fan
  • Air property detection plan and method for jet-flow type fume exhaust fan

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Embodiment Construction

[0022] The test jet range hood shown in the figure is an "outer ring" jet type model, in which the air jet (Q2) is ejected from the annular interlayer of the range hood (2) and the range hood (3) Because the high-speed jet forms a low-pressure area at the outlet of the oil suction pipe (3), the oil smoke flow (Q1) is sucked out from the oil suction pipe (3).

[0023] It is not difficult to find out in the figure: as the blower fan (4) of jet flow power, it can not be located in the oil suction hood (8), and can be positioned at any position indoors or outdoors completely independently, if it is positioned outdoors, it is convenient The location of installation and maintenance can not only greatly reduce the impact on indoor noise, but also can greatly improve the condensation recovery rate of smoke oil in the exhaust fume, which is beneficial to environmental protection.

[0024] Therefore, it is said that this jet-type range hood, which may become the replacement product of t...

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Abstract

An air performance testing facility and method for a jet-type range hood, which is re-formulated on the basis of the air performance test program specified in the national standard (GB/T17713-1999) for traditional range hoods with external discharge. The electric fan will never touch the air of the jet type range hood (CN 1309267A-discloses a model of a central jet range hood. CN 1338592A-discloses a model of an outer ring jet range hood) The discussion plan and method of the performance test content, the latter plan has a certain degree of equivalent simulation relationship with the former.

Description

Technical field: [0001] The invention relates to an air flow testing technical facility device and a method for using the same. Background technique: [0002] The national standard GB / T 17713-1999 stipulates that the wind pressure (static pressure) when the air volume of the external exhaust range hood is equal to or greater than 7 cubic meters per minute: it should be equal to or greater than 80Pa, and the test plan is detailed in the national standard Appendix A of . This test scheme is suitable for the performance test of the single airflow discharged at the exhaust port of the range hood. [0003] This national standard proposes the most authoritative standard data and testing methods for traditional range hoods. However, new technologies are emerging one after another. , especially where the test plan is already in a state where it cannot be applied. Because the jet-type range hood will produce two final mixed airflows when it is working: one is the air jet generated...

Claims

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Application Information

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IPC IPC(8): F24C15/20G01F1/34
Inventor 梁嘉麟
Owner 梁嘉麟